/* Soot - a J*va Optimization Framework
 * Copyright (C) 2011 Richard Xiao
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
package soot.jimple.spark.geom.geomPA;

/**
 * The worklist interface that abstracts the selection strategy.
 * 
 * @author xiao
 *
 */
public interface IWorklist 
{
	/**
	 * Some worklist may need the initial capacity.
	 * @param size
	 * @return
	 */
	public void initialize(int size);
	
	public boolean has_job();

	public IVarAbstraction next();

	public void push(IVarAbstraction p);

	public int size();
	
	public void clear();
};
